Does the job perfectly Noté 5 sur 5 étoiles
It's really incredible that you need an add-on to avoid such a stupid function.
The "switch to tab" should be an add-on, so instead of needing an add-on to avoid it, you needed an add-on to get it. That would make more sense.
Firefox is getting more and more annoying, so it's great there's someone to make it usable again with add-on such as this one.